EP 3374696 B1 20200617 - METHOD AND DEVICE FOR FLAME SIGNAL DETECTION
Title (en)
METHOD AND DEVICE FOR FLAME SIGNAL DETECTION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR FLAMMENSIGNALERFASSUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTECTION DE SIGNAL DE FLAMME
Publication
Application
Priority
- DE 102015222263 A 20151111
- EP 2016075733 W 20161026
Abstract (en)
[origin: WO2017080820A1] The invention relates to a method for flame signal detection by means of an ionisation electrode protruding into a combustion zone of a burner, comprising the steps: detecting a first signal, which is dependent upon an ionisation stream flowing off from the ionisation electrode, generating a second signal which has a predetermined periodic pattern, generating a third signal by addition of the first signal (225) and of the second signal, comparing the third signal with a first threshold value (reference 1) and generating a fourth signal (output signal 1) on the basis of the comparison of the third signal with the first threshold value (reference 2), comparing the third signal with a second threshold value (reference 2) different from the first threshold value and generating a fifth signal (output signal 1) on the basis of the comparison of the third signal with the second threshold value (reference 2), and determining an operating variable of the burner on the basis of at least one of the fourth signal and the fifth signal. The invention further relates to a corresponding device for flame signal detection.
IPC 8 full level
CPC (source: EP US)
F23N 1/022 (2013.01 - EP US); F23N 5/123 (2013.01 - EP US); F23D 2208/10 (2013.01 - US); F23N 2223/10 (2020.01 - EP US); F23N 2223/16 (2020.01 - US); F23N 2223/42 (2020.01 - EP US); F23N 2229/10 (2020.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2017080820 A1 20170518; CA 3004930 A1 20170518; DE 102015222263 B3 20170524; EP 3374696 A1 20180919; EP 3374696 B1 20200617; US 10704785 B2 20200707; US 2018372316 A1 20181227
DOCDB simple family (application)
EP 2016075733 W 20161026; CA 3004930 A 20161026; DE 102015222263 A 20151111; EP 16788076 A 20161026; US 201615775383 A 20161026